Easy to clean: Recently, my daughter both peed and puked in our stroller in the span of a week, and it made me wish that we could remove the fabric and throw it in the washing machine. Instead, it took vigorous scrubbing and multiple days of having it sit outside to make the acrid smell finally go away. Having removable fabric is optimal, but not common. Second best is fabric that resists moisture, dirt, and grime and makes it easy to wipe off toddler filth.
Not all umbrella strollers recline, but many do. This is a very useful feature to have because it means your child is more likely to rest and sleep inside the stroller, than if it is bolt upright at all times. If you don’t have a reclining umbrella stroller, this isn’t the end of the world, because for short journeys, a simple one-seat position should be more than adequate. 

We found the two-handed, two-step fold of the Yoyo+ to be the most complicated of the models we tested. You press the buttons on both sides near the joints at the bottom of the handlebar. The handlebar flexes back, and then you reach underneath the back of the seat to push a button and pull the red lever to collapse the seat. Oftentimes, I would have to fiddle with the wheels to get the Yoyo+ fully collapsed. I would also squish my fingers during the final step of the fold because I would instinctively place them in between the frame. (This is apparently a common enough occurrence that the manual tells you how to prevent it, but it takes practice to develop the muscle memory.) There is no way to do the fold with one hand while holding a child. The flip side of this complex fold is that the Yoyo+ is the only stroller that can be unfolded with one hand, but you have to give it a good snap of the wrist to ensure that it fully unfurls. Sometimes, the seat can get stuck, or the wheels get in the way, and you have to pry the stroller apart from the latch or orient the wheels to get it upright.